export function formatTime(timestamp: number, dateSplit:string='-', timeSplit:string=':'): string {
    if (Number.isNaN(timestamp)){
        return '--';
    }
    const date = new Date(timestamp);
    const year = date.getFullYear();
    const month = (date.getMonth() + 1).toString().padStart(2, '0');
    const day = date.getDate().toString().padStart(2, '0');
    const hour = date.getHours().toString().padStart(2, '0');
    const minute = date.getMinutes().toString().padStart(2, '0');
    const second = date.getSeconds().toString().padStart(2, '0');
    return `${year}${dateSplit}${month}${dateSplit}${day} ${hour}${timeSplit}${minute}${timeSplit}${second}`;
}